Large-scale Application of Klozur CR for the Treatment of an Aquifer Contaminated with Heavy Hydrocarbons and MTBE in Southern Italy

Abstract

Alberto Leombruni Mike Mueller

Klozur® CR is a combined remedy treatment technology consisting of Klozur® SP and PermeOx® Ultra. Klozur CR is a single, all-in-one formulated product that can be readily applied to either source areas or plumes with mixed petroleum and chlorinated solvents contamination. Klozur CR destroys contaminants in soil and groundwater by promoting three modes of action: Klozur activated persulfate chemical oxidation, aerobic bioremediation and anaerobic bioremediation. This technology was successfully applied to a site in southern Italy, contaminated by the storage and sale of fuels. The groundwater was contaminated by heavy chain hydrocarbons (TPH> 2500 μg / l) and MTBE (> 150 μg / l) in proximity to the reservoir park. During the site maintenance activities, the qualitative status of adjacent coastal waters was also verified, which, however, were found to be compliant. Previously the site used a pump and treat system, but it was unable to achieve remedial goals. Klozur CR was injected and within 4 months, the concentrations of the contaminants were found to have reached the remedial goals. In addition, monitoring data also confirmed enhanced ISCO conditions and enhanced aerobic bioremediation were present at the site.

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